I have been getting creative with my cooking lately, and trying to make a lot of different ethnic cuisines. I've been doing a lot of Indian lately, and have now started to explore Korean dishes. One problem that I've been running into is that cooking new styles of cuisine can get really expensive really fast! Since I don't have a lot of the spices and whatnot on-hand already, I may end up spending upwards of $50 on a single recipe for all of those things. Once I have them, they generally last a while, but the initial purchase can be a bit daunting (particularly if I don't end up taking to the style of cooking, and therefore not using everything later on).
Does anyone have any advice on "economic cooking" in this regard? Really it seems that the spices and herbs are the main things that end up costing an arm and a leg, as most of the vegetables and things can be found at reasonable prices.